If it's connected to Rainier and Adams then when it goes sounds like they go also. The article didn't state that directly but it would seem prudent to deduce the possiblity of that.

Not good and in an area that also has the doom of the Juan de Fuca subduction zone.

And people say not to move to Cali because of their earthquakes. I think I would rather be there than in Oregon/Washington/British Columbia.